From: Larry McVoy <lm@bitmover.com>
To: Dan Kegel <dank@kegel.com>
Cc: GCC Mailing List <gcc@gcc.gnu.org>, linux-kernel@vger.kernel.org
Subject: Re: LMbench as gcc performance regression test?
Date: Sun, 31 Aug 2003 07:00:37 -0700 [thread overview]
Message-ID: <20030831140037.GA16620@work.bitmover.com> (raw)
In-Reply-To: <3F51A201.8090108@kegel.com>
On Sun, Aug 31, 2003 at 12:21:37AM -0700, Dan Kegel wrote:
> (There seems to be large variations in successive runs of LMBench
> when I try it, so it may take me a bit of work to get repeatable
> results.)
Other than the context switch part or anything based on it, that shouldn't
be true, it should be very stable.
I'm pretty convinced that the variations are due to different pages being
allocated and the result cache contention makes things bounce.
--
---
Larry McVoy lm at bitmover.com http://www.bitmover.com/lm
next prev parent reply other threads:[~2003-08-31 14:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-31 7:21 LMbench as gcc performance regression test? Dan Kegel
2003-08-31 14:00 ` Larry McVoy [this message]
2003-08-31 14:28 ` Dan Kegel
[not found] ` <3F520773.1070907@kegel.com>
[not found] ` <20030831145956.GE23783@work.bitmover.com>
2003-08-31 22:53 ` Dan Kegel
2003-08-31 15:24 ` Daniel Jacobowitz
2003-08-31 15:59 ` Dan Kegel
2003-08-31 16:18 ` Larry McVoy
2003-08-31 17:03 ` Martin J. Bligh
-- strict thread matches above, loose matches on Subject: below --
2003-08-31 16:57 rwhron
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